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What is a hex number?

A hex number, short for hexadecimal number, is a number expressed in the hexadecimal positional numeral system with a base of 16 which uses sixteen symbols: the numbers from 0 to 9 and the letters A,B,C,D,E, and F, to represent values from 0 to 15. Equivalently, small-case letters a through f can be used.

What is a hexadecimal number?

Decimal number is a number expressed in the base 10 numeral system. Decimal number's digits have 10 symbols: 0,1,2,3,4,5,6,7,8,9. Each digit of a decimal number counts a power of 10. Hexadecimal number is a number expressed in the base 16 numeral system. Hexadecimal number's digits have 16 symbols: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F.

How do you write a hex number?

Equivalently, small-case letters a through f can be used. For example, 10 in decimal is A in hex, 100 in decimal is 64 in hex, while 1,000 in decimal is 3E8 in hex. Hex numbers have signs, just like decimal ones, for example -1e is equal to -30 in decimal.

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